What would Trump be without an enemy? I think that's the question we need to answer here. Can he thrive in a world in peace? I have difficulty imagining what he would do.
I would go even further: most countries in the world right now don't need an enemy. There is just a few of them that are defined by persistent war.
China also switched to wolf warrior diplomacy for close to a decade now.
Ok, fine. Let's think of that hypothetical: The US wins.
Then what? How would Trump thrive in that world? What's his next angle? Every single country in the world is thinking that same question.
The answer is, "He'd pick another".
IIRC there's a quote from Hitler about how he could have picked another minority than the Jews to rail against.